Sandro del Prete

Three craftsmen are trying to assemble the elements of a prefabricated table by placing all its pieces of identical length in parallel with each other, each on their corresponding notches. The angles and junctions match the plan perfectly. However, the craftsmen are dumbfounded to see that the surface of the table is tilting sharply to one side. Pushing and bending does not help, so they decide to exhibit the crazy table at it is, to show that even useless things sometimes fit a useful purpose.